This is a list of ship classes the Spanish Nationalists used during the Spanish Civil War (1936–1939).
Battleships
— One ship, España (formerly ), seized by the Nationalists at the start of the war.
Cruisers
Heavy Cruisers
heavy cruisers — These two ships, and , were built as modified County-class cruisers, and the Nationalists seized both of them at the start of the war.
Light Cruisers
light cruiser — Built as modified Emerald-class cruiser. The Nationalists seized the lead ship of the class, , at the start of the war. — A unique light cruiser which resembled a modified British World War I-era Town-class cruiser. Seized by the Nationalists at the start of the war.
Destroyers
— The Nationalists seized one ship of the class, , at the beginning of the war. — The Nationalists sank one ship of the class, , then refloated her, and she saw service with them towards the end of the war. s–Units of a four-ship class Romania ordered from shipyards in Italy which Italy seized for use as scout cruisers during World War I. Italy transferred two of the ships to Romania in 1920, but kept the other two ( and ), and Fascist Italy sold them to the Nationalists in 1937. The Nationalists classified them as destroyers and renamed them Ceuta and Melilla, respectively. Called the Ceuta class in Spain. scout cruisers– A class of Italian World War I scout cruisers which Italy later reclassified as destroyers. The Nationalists purchased two of them, and , in 1937 and renamed them Huesca and Teruel, respectively. Called the Huesca class in Spain.
Auxiliary cruisers
List of auxiliary and merchant cruisers
Submarines
— Bought from Italy and called the General Mola class in Spain.) — Two ships Italy lent to the Nationalists for a period.
References